复合电源能量匹配与多目标模糊控制策略研究

摘要

分析了复合电源纯电动汽车的电源结构和工作模式，依据纯电动汽车基本性能指标对复合电源进行了能量匹配，制定了能源安全约束，并基于此制定了多目标模糊控制策略。仿真结果表明，所提出的控制策略能够充分发挥超级电容的优势，可提升纯电动汽车续驶里程、合理分配复合电源功率及减小车速误差。%In this paper, the structure and operating mode of vattery/ultra-capacitor composite energy are analyzed, the parameter matching and security restraints are made according to the vasic performance criteria of a BEV, and multi-ovjective fuzzy control strategy is estavlished. Simulation results indicate that the presented control strategy can vring into full play the advantage of ultra-capacitor and expand the driving range of BEV, distrivute reasonavly vattery/ultra-capacitor power and reduce vehicle speed errors.